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Title:
MAGNETIC RESONANCE IMAGING SUPERCONDUCTING MAGNET SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/134533
Kind Code:
A1
Abstract:
An intelligent liquid helium-free magnetic resonance whole body imaging superconducting magnet system, comprising: a vacuum container (8), a main magnetic field superconducting coil (1) being disposed in a radial inner side space within the vacuum container, and a shielding magnetic field superconducting coil (2) being disposed in a radial outer space within the vacuum vessel, wherein a heat pipe gas storage tank (4) is placed in a vacant area between the main magnetic field superconducting coil and the shielding magnetic field superconducting coil; a helium liquid storage box (5), which is in communication with a liquid storage box gas storage tank (6) while being connected to the main magnetic field superconducting coil or the shielding magnetic field superconducting coil by means of a helium self-excited oscillation heat pipe (3), the helium self-excited oscillation heat pipe also communicating with the heat pipe storage tank; a refrigerator (9), which is fixed onto the vacuum container by means of an automatic insertion and removal assembly (10) of a heat conducting member; a first heat conducting member that is connected to the refrigerator is in close contact with a heat radiation screen assembly, and a second heat conducting member that is connected to the refrigerator is in close contact with the helium liquid storage tank. The system overcomes problems in existing superconducting magnet systems wherein cooling performance is low, a magnet rapidly loses temperature due to excessive heat leakage after a refrigerator has stopped working, and the maintenance complex reliability of the superconducting magnet system is poor.

Inventors:
WANG, Qiuliang (No.6, Beiertiao Zhongguancun, Haidian District, Beijing 0, 100190, CN)
XU, Jianyi (No.6, Beiertiao Zhongguancun, Haidian District, Beijing 0, 100190, CN)
HU, Xinning (No.6, Beiertiao Zhongguancun, Haidian District, Beijing 0, 100190, CN)
Application Number:
CN2018/122526
Publication Date:
July 11, 2019
Filing Date:
December 21, 2018
Export Citation:
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Assignee:
INSTITUTE OF ELECTRICAL ENGINEERING, CHINESE ACADEMY OF SCIENCES (No.6, Beiertiao Zhongguancun, Haidian District, Beijing 0, 100190, CN)
International Classes:
H01F6/04
Foreign References:
JP5675578B22015-02-25
CN103845057A2014-06-11
CN105501679A2016-04-20
CN108022711A2018-05-11
CN1892931A2007-01-10
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (8th Floor, Vantone New World Plaza 2 Fuchengmenwai Street, Xicheng District, Beijing 7, 100037, CN)
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